2057780178 has 12 divisors (see below), whose sum is σ = 4458523758. Its totient is φ = 685926720.

The previous prime is 2057780177. The next prime is 2057780183. The reversal of 2057780178 is 8710877502.

2057780178 is a `hidden beast` number, since 2 + 0 + 577 + 8 + 0 + 1 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2057257449 + 522729 = 45357^2 + 723^2 .

It is not an unprimeable number, because it can be changed into a prime (2057780171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57160543 + ... + 57160578.

Almost surely, 2^2057780178 is an apocalyptic number.

2057780178 is an abundant number, since it is smaller than the sum of its proper divisors (2400743580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2057780178 is a wasteful number, since it uses less digits than its factorization.

2057780178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114321129 (or 114321126 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The square root of 2057780178 is about 45362.7620190834. The cubic root of 2057780178 is about 1271.9391250385.

The spelling of 2057780178 in words is "two billion, fifty-seven million, seven hundred eighty thousand, one hundred seventy-eight".